Loose-leap binder



Aug. 28, 1928. 1,682,108 F. G. BEVANS LOOSE LEAF BINDER Fii'ed Sept. 11, 1926 I. II

[XI 'ENTOR.

Freda rick ll EIEVEIIIE Patented Au 28, 1928.

UNITED STATES,

1,682,108 PATENT OFFICE.

FREDERICK G. BRVANS, OF KANSAS CITY, MISSOURI, ASSIGNOR TO IRVING-IITT MANUFACTURING COMPANY, OF KANSAS CITY, MISSOURI, A CORPORATION OF MISSOURI.

LOOSE-LEASE BINDER.

Application filed September 11, 1926. Serial No. 134,878.

This invention relates toloose leaf binders and has particular reference to means car-.

"holding means as the binder covers are being closed.

One of the objects of my invention is to provide means which may be easily attached to any standard make binder of the ring type, which is best adapted to perform its duties of guiding the sheets to the proper location after it has been placed in the binder.

Another object of the instant invention is the provision of an extremely simple, eflicient, effective and durable means for performing the duties of guiding loose leaf binder sheets to the proper position on the sheet holding means during the time the binder is being closed.

It is well known in this art that ring binders, particularly of the larger size are objectionable in that when the binder is being closed, the sheets thereof will fall between the rings and the covers, thus becoming bound in that position and precluding further movement of the covers toward a completely closed position.

Minor objects and specific details of construction will appear during the course of the following specification, referring to the accompanying drawing, in which:

Figure 1 is a plan View of a loose leaf ring binder showing the same in the open position and-having therein means made in accordance with my invention for properly positioning the binder sheets When the binder is closed;

Fig. 2 is a fragmentary cross section taken on line IIII of Figure 1;

Fig. 3 is a similar section with the binder moved to the partially closed position;

Fig. 4: is a similar section taken clear through the binder showing the same in the completely closed position, sheets being held in the desired location by the novelly constructed fly leaves; and

Fig. 5 is a perspective view of a ring binder fly lea-f showing the same entirely removed from the binder and clearly illustrating the curled back margin formed along the bound edge thereof.

Similar reference characters refer to identical parts throughout the several views and the numerals 6 and 7 respectively designate the binder metal 8 therein,

the .two covers of a loose leaf binder of the ordinary type, which as is customary carries which includes rings 9 adapted to open and close when it is desired to place and remove the perforated binder sheets 10. i

To this point it is obvious that the structure set forth is old and no invention therein is claimed.

The combination with a binder of this general character of novelly constructed fly leaves 12 will force the binder sheets 10 to Y the desired position as shown in Fig. 4 when the covers 6 and 7 are closed.

One form of embodiment of my invention is clearly shown in the accompanying drawing. The same may consist of a pair of fly leaves 12 held by rings 9 in the usual manner with sheets 10 positioned therebetween. Along one edge of fly leaf 12 is affixed a rein. forcing strip 13 which may be riveted or otherwise aflixed to the leaf 12 and which is perforated as at 14, which perforations pass over the several rings 9 in assembling the device. Strip 13 should be wide enough to bridge the hinged portion of covers 6 and 7 to preclude sagging on the partof the fly leaf or hinder sheets along the bound edge. Strip 13 must be formed to present the curled back margin 15 which projects within the rings when the fly leaves are in place. This curled back margin 15 of each of the two fly leaves 12 rests above the binder metal 8 as the edges thereof abut and rest along the upper face of metal 8.

When the binder is in the open position shown in Fig. 2, the sheets therein are held against sagging and in a position away from the hinge of the adjacent cover 6 or 7. As the binder covers are raised toward the closed position, as shown in Fig. 3, the edge of each fly leaf 12 along the curled back margin 15 will ride over binder metal 8 and on to the inner periphery of rings 9. As the covers are further urged to the closed position, this curled back margin 15 will ride upwardly along the rings pushing the sheets 10 ahead of the covers 6 and 7 so that as the covers just mentioned approach the sides of the rings 9 the sheets 10 will positively be forced to a position. where they will not be caught and bound. A fly leaf 12 having a reinforcing strip 13 curled as at 15 will lift and guide the the entire sheet capacity of a ring binder to a segr'lent ofthe rings located at the top and exactly between the covers 6' and 7. The degree of curvature of curled margin W111 va slightl with rings of various diameters an as a guide to this degree of curvature it has been found advisable to insure the fact that the edge of curled margin 15 which rides over metal 8 and rings 9 be disposed between the major plane of its supportlng-fly leaf 12 scribed, a pair of fly leaves carried by the rings of the binder,.each havin a curled back margin pro'ecting within the rings, the edges 7 of-said fly eaves along the curled back margin abutting and engaging the binder metal when said binder is in the open position.

2. In a loose leaf ring binder of the character described, a pair of fly leaves each having a curled back margin projecting within the rings of said binder, the edge of each fly leaf along the curled back margin adapted to engage the inner peripher of said rings as the binder is closed whereby the sheets of the binder held between said fly leaves are forced along the rings ahead of the binder covers as said covers approach the rings thereof.

3. A fly leaf for ring binders havin a curled back margin along the bound efige thereof, the free edge of said margin riding against a portion of the inner periphery of the binder rings as the binder is opened or closed.

4. A fly leaf for ring binders having a reinforcing strip integral therewith along one edge thereof, perforations formed through said strip for en aging the rings of said binder and a curled back margin formed between said perforations and edge having its free edge engaged by a portion of the binder rings to support said flv leaf or closed.

In testimony whereof, I have hereunto affixed my signature'this 27th day of August, 1926. v j

FREDERICK G. BEVANS.

as the binder is opened 

